A needleless injection system, just patented by MIT, delivers medicine to the bloodstream through a hypospray. From Dvice: “MIT has developed an injection system that uses a powerful magnetic piston to push a near-supersonic dose of medication straight through your skin into your body. The drugs themselves are carried along on a blast of air that’s skinnier than the proboscis of a mosquito, which means that you can’t feel it at all. In fact, it doesn’t even leave a mark, which means that it can be used on your eardrums or even your eyeballs without causing any damage.”